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Translated from Sibirskii Matematicheski Zhurnal, Vol. 9, No. 4, pp. 863–879, July–August, 1968.
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Petrovskaya, M.B. Series in the Haar system and functions of the class H 1ω(δ) . Soviet Mathematical Journal 9, 641–652 (1968). https://doi.org/10.1007/BF02199100
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DOI: https://doi.org/10.1007/BF02199100